baber/WOPTO huggingface dataset:
Patent GB-2067986-A (GB)
Title: Optical glass fibres and methods of forming such fibres
IPC: C03B37/016
Filed: 1980-12-19
Abstract: In optical glass fibres formed of high-silica glass which is susceptible to the production of colour centres on drawing into fibres, the attenuation due to such drawing-induced colour centres is suppressed or reduced by incorporating from 1 to 100 (preferably 3 to 50) parts per million of cerium oxide in the glass from which the fibre is drawn, under oxidising conditions such that a significant proportion of the cerium is in the form of ceric ions and the total attenuation is not more than 20 dB/Km in the wavelength range from 800 to 900 nm. The invention is applicable to the known process in which a batch of glass-forming materials is melted to form a phase- separable silicate glass and a rod is drawn or cast from the glass, which is then phase-separated and leached to form a porous rod; the rod is stuffed with a dopant which increases the refractive index; the dopant is dissolved out from an outer region of the rod, which is collapsed by heating to produce a pre-form of a high silica glass with an inner region of higher refractive index; and optical fibre is drawn from the pre-form. A cerium compound may be introduced into the batch, the melting and the drawing or casting of the rod then being carried out under oxidising conditions, or a cerium compound may be introduced with the dopant into the porous rod, which is then collapsed under oxidizing conditions.
Patent GB-2093914-A (GB)
Title: Rotary pneumatic motors
IPC: F01C21/10
Filed: 1981-02-19
Abstract: A sliding-vane motor 11 comprises a hollow cylinder 31, a rotor 30 within the cylinder, and end plates 32, 33 closing-off the ends of the cylinder and supporting the rotor, the motor being lodged in housing 10. To reduce the amount of precision machining required, the cylinder 31 is mounted in counterbores 44 in the end plates. The rotor is held in place by the end plates, one of which may be held against an annular abutment 50 in the rear of the housing and the other of which may be held in a gear casing 55 screwed into the open end of the housing. The motor may drive a tool chuck 13 through a gear box 12 and the housing may be hand-held. <IMAGE>
Patent GB-2074452-A (GB)
Title: Surface vibration absorbing strap
IPC: A61F5/34
Filed: 1981-03-30
Abstract: A device (20) for the prevention of and treatment for Tennis Elbow, employs a vibration absorbing pad (22) covering either the extensor or flexor muscles of the forearm. The pad (22) is tightly located against the said muscles by means of an elastic tube (24) from the wrist area to the elbow. An elastic strip (26), located outside the aforementioned tube (24) around the largest diameter of the forearm and fastened by Velcro or like fasteners (28a, 28b) is an additional means for maintaining the pad (22) in close contact with the arm surface. The aforementioned pad (22), shaped to conform with the extensor or flexor muscle in the forearm, is filled with a viscous fluid or semi-fluid (32) which will flow enough to maintain a close contact with the muscle from wrist to elbow. The viscous fluid (32) absorbs the surface vibrations caused by the off-centre striking of a ball with a racquet. <IMAGE>
Patent GB-2095619-A (GB)
Title: Sublimation printing method
IPC: D06P5/28
Filed: 1981-03-31
Abstract: A method of sublimation printing on materials provided with synthetic surfaces comprising cross-linking thermosetting plastics in the form of methacrylics, especially using polyisocyanate cross-linking agents wherein the thermosetting plastics is coated on one or both sides of the material, e.g. textile fabric, sheet metal, wood or synthetic material, and subsequently dried until completely or partly cross-linked, followed by the application of dyes according to the known thermosublimation process.
Patent GB-2073837-A (GB)
Title: Support and Coupling Assemblies for Ducting
IPC: F16L9/21
Filed: 1981-04-13
Abstract: The invention relates to a coupling assembly (10) for connecting together two lengths (11, 12) of air ducting. The assembly comprises a pair of concentric sleeves (13, 14) the innermost sleeve (13) being attached to adjacent ends (11a, 12a) of the two lengths of ducting and the outermost sleeve (14) being adapted for connecting to support means (17). A load bearing heat and/or noise insulating material (18) is located in the space between the sleeves. <IMAGE>
Patent GB-2075542-A (GB)
Title: Refining and Cracking Carbonaceous Materials
IPC: C10J3/02
Filed: 1981-04-14
Abstract: A process for hydrotreating carbonaceous materials is disclosed in which the carbonaceous material is contacted with steam and with empirical hydrates of alkali metal hydrosulfides, monosulfides, or polysulfides to hydrocrack, hydrogenate, denitrogenate, demetallize and/or desulfurize the carbonaceous material, hydrogen sulfide optionally being co-fed to the reaction zone.
Patent GB-2075185-A (GB)
Title: Dimensional checking apparatus
IPC: G01B21/04
Filed: 1981-04-21
Abstract: Apparatus for checking the dimensional accuracy and/or measuring the dimensions of large objects (1), provided with checking points which serve as or carry suspended measuring scales (2-7) comprises at least one beam-projection unit 12, 20 movable along a guide 8, 9 to emit a narrow beam of light at an angle to the guide. The position of the projector unit is optically or magnetically readable automatically and is stored in the memory of a calculating unit into which measurement data of an undistorted object can also be entered. The projection units 12, 20 also comprise devices for determining beam angle. From measurements on one checking point the apparatus calculates the spatial location of that point and the correct apparatus setting for other points. When the apparatus is set on other points, the correctness of the position of the point is indicated optically or accoustically. <IMAGE>
Patent GB-2078556-A (GB)
Title: Spray booth
IPC: B05B16/00
Filed: 1981-05-12
Abstract: A treatment chamber, which by way of example is intended to be used as a spray booth. By means of the present invention a treatment chamber is obtained, which is easy to clean and which permits the insertion of treatment means (22), such as for example spray nozzles for paint (22), at optional places along the whole length of the treatment chamber. This object is obtained by a preferably endless band (1), which is spirally rerouted and displaceable in its longitudinal direction, forming the lateral walls of the treatment chamber.
Patent GB-2109919-A (GB)
Title: Improvements in or relating to cooker hobs
Inventor: GOSTELOW BENJAMIN FRANK
IPC: F24C3/12
Filed: 1981-09-15
Abstract: A cooker hob (1) fitted with either gas burners (2) or electric rings has a cover (17) pivoted to it and counterbalanced with a spring (31) housed in a pressing (23) in such manner that the closing weight of the cover is fully counterbalanced when the cover is at a position between its fully closed and fully opened positions. Associated with the cover is a valve controlling gas flow to the gas burner (2) or a switch controlling the supply of electricity to the rings, the valve or switch being operated by a cam actuated rod (47) to terminate the supply of gas or the flow of electricity when the cover reaches its fully closed position. <IMAGE>
Patent GB-2085027-A (GB)
Title: Preservation of Hops
IPC: C12C3/04
Filed: 1981-10-05
Abstract: Hops are often required to be stored for long periods and are therefore subject to deterioration due to oxidation. The method of this invention overcomes this problem by adding ascorbic acid to the hops The ascorbic acid is oxidized in preference to the hops and therefore prevents the hops from being oxidized. The added ascorbic acid is lost on boiling so has no effect on beer made therefrom.
Patent GB-2085305-A (GB)
Title: Absorbent products
IPC: A61B19/08
Filed: 1981-10-21
Abstract: Absorbent products such as plasters and bandages, surgical wound dressings, female sanitary protection products, baby napkins, e.g. disposable napkins, and incontinence products comprise an absorbent material, at least partially faced by a cellular plastics film, preferably a polyolefin film, e.g. polyethylene film, having perforations which have been produced by passing electrical discharges therethrough. The absorbent material may be entirely embraced by the cellular plastics film, or one face of the absorbent material may be covered by the cellular plastics film and another face optionally covered by a backing sheet. Also disclosed is the use of the perforated film in drapes and gowns for surgical and other use, and in filtering media, including face masks.
Patent GB-2087866-A (GB)
Title: Sealing of aluminium foil membranes to glass containers
IPC: B65D77/20
Filed: 1981-11-19
Abstract: Problems arising from the packaging of aqueous products in glass containers heat-sealed by resin- coated metal, e.g. aluminium, foil membranes are alleviated by providing a glass sealing surface having a degree of hydrophobicity such that the contact angle of a drop of water on the sealing surface is in excess of 40 DEG . Methods involving the provision of a tin oxide coating on the glass, optionally with a subsequent long chain fatty acid and also possibly a polyolefine treatment, are described.
Patent GB-2101038-A (GB)
Title: Disposable product with hydrophobic anti wetback sheet
Inventor: KARAMI HAMZEH
IPC: B32B5/26
Filed: 1979-06-07
Abstract: Disposable product for example a diaper having a hydrophobic layer (12) formed of non-woven polyethylene or polypropylene fibres, a hydrophobic tissue wadding (16, 18, 26) preferably wrapped around (26) an absorbent pad (14) and a water-proof backing sheet (20) of plastic film secured at its edges (22) to the top layer (12). <IMAGE>
Patent GB-2119362-A (GB)
Title: Process for producing ketones
Inventor: MAZOUR ZDENEK
IPC: C07C45/30
Filed: 1982-03-30
Abstract: There is described a process for producing ketones of the formula I   <IMAGE>  by oxidation of an alcohol of the formula II   <IMAGE> with chlorine in a two-phase reaction medium consisting of water and an organic solvent immiscible with water, the pH-value during the reaction being kept between 1 and 7 by the addition of alkali metal or alkaline-earth metal hydroxide solution. In the formulae I and II, R1 and R2 independently of one another are each C1-C10-alkyl, alkoxyalkyl having at most 12 carbon atoms, or phenyl which is unsubstituted or is substituted by halogen or C1-C6-alkyl, or R1 and R2 together form a C4-C10-alkylene chain.
Patent GB-2124049-A (GB)
Title: High power amplifier arrangement
Inventor: GERARD ROGER EDWIN JOHN
IPC: H03F1/18
Filed: 1982-07-10
Abstract: A high power amplifier arrangement utilises a configuration which is similar to that of a distributed amplifier in which the capacitances of a plurality of individual amplifying devices form part of a delay which couples together the amplifying device, so as to sum the output power. The invention enables amplifying devices, such as vacuum tubes or field effect transistors which have significant electrode capacitances, to be used to amplify wide band high frequency signals. Each amplifying device is provided with an associated output impedance having a value which is matched to that of the output delay line on to which it fits. The output delay line consists of a number of stages separated by power combiners connected to different respective amplifying devices. This configuration can be more efficient than a conventional distributed amplifier, and its use is more acceptable in conjunction with loads, such as antennas whose actual input impedance can differ somewhat from a nominal design value. <IMAGE>
Patent GB-2103680-A (GB)
Title: Lintel and wall comprising same
Inventor: ANDREWS HAROLD JOHN
IPC: E04C3/02
Filed: 1982-08-09
Abstract: A lintel in the outer leaf of a cavity wall comprises a horizontal limb (11) with a drip lip (13) and a vertical limb (12) which abuts the inner face of the outer leaf. The lintel is not connected to the inner skin (21), which includes a separate concrete lintel (19). <IMAGE>
Patent GB-2104947-A (GB)
Title: Drainage block
Inventor: FENWICK RICHARD GEOFFREY
IPC: E01C11/22
Filed: 1982-08-19
Abstract: A concrete drainage block (10) can be end pressed to have a continuous unrestricted slot (14) communicating between the top face and a drainage channel (12). The slot (14) is lined with a metal insert (24) having downwardly divergent side walls (26) and downwardly divergent bridging portions (25) spaced along the insert and terminating short of the upper edge. Such a lined slot is easily cleaned and the edges are not susceptible to breakage. <IMAGE>
Patent GB-2110557-A (GB)
Title: Preparing Cu-Zn-Cr methanol synthesis catalyst
Inventor: NAKAMURA TADASI
IPC: C07C27/00
Filed: 1982-10-19
Abstract: A process for producing a copper-zinc-chromium catalyst composition having improved catalytic activity and heat resistance, which comprises calcining a mixture of a copper-containing precipitate and a zinc-containing precipitate each obtained by precipitation from an aqueous solution of a water-soluble copper salt and an aqueous solution of a water-soluble zinc salt, together with a chromium source compound selected from the group consisting of chromic anhydride, dichromic acid and their salts, said chromium source compound being treated, before contact with said mixture, with a reducing organic compound selected from the group consisting of alcohols, sugars, organic hydroxy acids, aldehydes, ketones and amines.
Patent GB-2133177-A (GB)
Title: Reel-to-reel tape or film machines
Inventor: ABDEL AZIZ MOHAMMED SAMIR MOHA
IPC: G06K17/00
Filed: 1982-12-22
Abstract: An audio tape player is disclosed having a fast-wind mechanism and a reel revolution counter (S1, S2, S3) providing an actual reel revolution count signal (M). In order to enable the tape player, when fast-winding, to be stopped at a selected position along the tape, there are also provided a selector (K) which provides a selected reel revolution count signal (N) dependent on the selection made, and a comparator (C1', C2', C3') which compares the selected count signal (N) and a signal (M') derived from the actual count signal (M) to cause the fast-wind mechanism to be released when the two count signals (M, N) differ by a predetermined amount. The tape may then slow down to play speed, and a further comparator (C1, C2, C3) may be provided to switch on the audio channels of the player when the count signals (M, N) are equal. The invention may also be applied to video tape players and microfilm readers. <IMAGE>
Patent GB-2113344-A (GB)
Title: Manufacture of reinforced hose
Inventor: WHEATLEY WILLIAM
IPC: B29C48/91
Filed: 1983-01-14
Abstract: Steel-reinforced rubber hose is manufactured by extruding an elastomer layer (12) onto a mandrel (10), applying reinforcing wire (14) to the extruded material, raising the temperature of the wire by use of induction heater (18), extruding a further elastomer layer (16) over the reinforcement from extruder (15) and heating the hose to effect curing in chamber (17). The reinforcements may also be induction heated in the curing chamber using inductor (19). <IMAGE>
Patent GB-2135115-A (GB)
Title: Improvements in or relating to support systems
Inventor: LAMBERT JOSEPH LOUIS
IPC: C30B31/10
Filed: 1983-02-09
Abstract: This invention relates to a support system comprising one or more elongate members 1,2,3 of columellate form, each of which members is made up of a plurality of sections e.g. 6,9 which interfit one within the other in telescopic fashion. The end of the complete member having the larger dimensions is held in a clamping device 4 and the smaller section at the end remote from the clamp is borne by a wheel or roller e.g. on the process tube of a furnace. <IMAGE>
Patent GB-2130541-A (GB)
Title: Space vehicle
Inventor: EMMANS JAMES ALDRED
IPC: B64G1/40
Filed: 1983-02-14
Abstract: A space vehicle has lift-producing units 3 each comprising a plate 9 over which is blown a high speed air jet to produce a reduced pressure on its upper surface. A number of units 3 are mounted side by side on beams 4 in a sealed upper chamber 1 of the vehicle. Thrusters 5 on the vehicle side walls provide forward drive. <IMAGE>
Patent GB-2116872-A (GB)
Title: Drying apparatus with air filter
Inventor: BIANCHI JANETTI CLAUDIO
IPC: B01J8/00
Filed: 1983-03-15
Abstract: Wet granular solids are dried in a fluidised bed by a current of hot air in chamber 2, and the air passes upwards from the bed and inwards through filter bags 14, which are provided with Venturi nozzles 22 and compressed air jets 28 to blow the accumulated dust periodically from their outer surfaces and back into the chamber 2 or to the bottom of the filter chamber 2. <IMAGE>
Patent GB-2130937-A (GB)
Title: Controlling the radial depth of cut of a rotary tool
Inventor: UNNO KEIZO
IPC: B23B29/034
Filed: 1983-09-06
Abstract: A method and an apparatus for controlling radial depth of cut of a rotary cutting tool 200 in a machine tool, comprises an eccentric mechanism C, for controlling the radial depth of cut of the tip P of the cutting tool 200 provided outside the main spindle 2. A tool holding shaft 112 of the tool holder is, by means of the eccentric mechanism C, rotatably adjustable through a depth of cut control shaft 24, extending through the bore of a draw-bar 23 concentrically disposed within the bore of the main spindle 2. Such adjustment is powered by means of a servo-motor 40 and differential gear mechanism 7. <IMAGE>
Patent GB-2128320-A (GB)
Title: Heat pipes
Inventor: CONSTABLE COLIN HUGH
IPC: F28D15/04
Filed: 1983-09-28
Abstract: The starting ability of a heat pipe, having an inner tube (12) separating the vapour-phase and liquid-phase return paths from one another, under "negative slope" conditions, i.e. with the heat pipe extending (slightly) upwardly towards its heat-absorbing end (10A), is improved by providing not only a bend (10C) so that a part of the heat pipe also extends upwardly towards the heat-releasing end (10B) but also a pair of weirs (15, 16) through which the respective ends of the inner tube (relatively small-bore, and providing the liquid-phase return path) open to the two ends of the heat pipe, the top of the weir at the heat- releasing end being higher (in space) than that at the heat-absorbing end. <IMAGE>
Patent GB-2156383-A (GB)
Title: Infra-red material structures
Inventor: SPEAKMAN STUART PHILIP
IPC: G02B1/00
Filed: 1984-02-06
Abstract: A process for modifying properties of infra-red materials in or for use in infra-red windows and other structures, in which the infra-red material is subjected to ion implantation whereby ions of an elemental dopant are implanted into the infra-red material under vacuum conditions. Heat diffusion may improve the depth of ion penetration. Specified materials are germanium, zinc sulphide, cadmium mercury telluride, calcium lanthanum sulphide and zinc selenide; specified dopants are boron, carbon and silicon.
Patent GB-2140297-A (GB)
Title: Hair treatment compositions
Inventor: KUROKAWA HIDEO
IPC: A61Q5/00
Filed: 1984-04-19
Abstract: A hair treatment composition capable of imparting excellent hair manageability, wettability, luster and brushability to hair as well as having good stability of the dispersion on storage comprises a lower alkyl ester of a mono-N-acyl substituted basic amino acid in the form of a salt, a saturated monohydric alcohol of C14 to C22 linear structure, a fatty acid ester of sorbitan, a fatty acid ester of polyglycerin and a polyhydric alcohol or an alkylene oxide adduct thereof each in a limited proportion, the balance being water and other optional ingredients.
Patent GB-2149636-A (GB)
Title: Device and method for pulling up root crops
Inventor: BOUCTON JEAN
IPC: A01D25/00
Filed: 1984-11-19
Abstract: In a root crop harvester, there is provided an auxiliary lifting device for attachment in front of the rear wheels of the towing tractor, each device pulling up the outer row of the root crop and comprising a share or similar puller S6 mounted on a frame of the tractor. Behind the share is mounted a wheel 29 (Figure 2) driven to move lifted roots into a row in the centre of the tractor, between the wheels. The lifted beets are picked up by a conventional collector attached with the further pulling device at the rear of the tractor. <IMAGE>
Patent GB-2168191-A (GB)
Title: Video disc data storage
Inventor: HOWARD RONALD JOHN FREDERICK
IPC: G11B27/10
Filed: 1984-11-26
Abstract: A method for storing data comprises storing data on a video disc so that the data may be accessed by a computer and storing selected items of the data on another computer accessible data storage medium to form an index for the data stored on the video disc. A pre- master tape may be edited as required, and duplicate video discs produced from the master disc. Graphs in the original material may be expanded and text compressed, for example. <IMAGE>
Patent GB-850354-A (GB)
Abstract: 850,354. Levels. PICKETT PRODUCTS Inc. April 30, 1958 [May 13, 1957], No. 13703/58. Class 97(2) The level comprises a transparent, liquid filled housing having a socket at the bottom thereof in which the ball at one end of a weighted float rests; said float having a pointer at the other end which moves over a scale in the housing. Means may be provided to retain the ball in the socket while still allowing the float to oscillate. As shown, a transparent housing 10 containing a liquid 31 has a socket 48 (or 52) which engages a ball 20 of a weighted float A. The ball is held in the socket by gravity (Fig. 1), by a projection 50 (Fig. 8) or by a U-shaped clip 56 (Fig. 9), arranged so that the float can oscillate in the plane of the scale 28. The level may have a notch 15 (Fig. 1) so that it will rest easily along a pipe. One or two level units may be fixed to a span bar for levelling over rough surfaces and for horizontal and vertical measurements.
Patent GB-2158516-A (GB)
Title: Rotating pump with oscillating vanes
Inventor: DI PAOLA FRANCESCO
IPC: F04C2/44
Filed: 1985-04-02
Abstract: To maintain an extremity of each vane 21 constantly in contact with or close to the internal cylindrical surface of the stator 16, 16', cyclic variation of vane projection relative to the cylindrical surface of the rotor, is determined by cyclic oscillation of each vane with its shaft 10 said oscillation being guided and controlled by a special guiding device 24 to 27. The device comprises an offset pin 25 with a bearing 24 rolling around a track 27. Due to centrifugal force in use, a mass 26 assists in keeping the vanes in the best position. An adjusting screw 30 and adjustable reaction spring 32 provide means for varying the degree of eccentricity between the rotor and stator. <IMAGE>
Patent GB-2158858-A (GB)
Title: Improvements relating to disc shearer-loader machines
Inventor: KNORR VOLKER
IPC: E21C27/02
Filed: 1985-05-20
Abstract: A disc shearer-loader machine incorporates two units which carry a shearer drum and accommodate, in addition to reduction gearing 7 for the driving, motor, a haulage motor 8 disposed transversely to the direction of machine movement or travel, and reduction gearing for the haulage motor 8. Pinions 17 of the reduction gearing 7 are disposed near the face-side wall 6 of each unit, one of the pinions having a root circle diameter which exceeds the diameter of the haulage motor 8. Such pinion 17 is disposed coaxially of the motor 8 and is rotatably mounted on the hub 19 of a casing cover 20 which closes an opening 21 in the unit. The opening 21 is coaxial with the haulage motor 8, the diameter of the opening 21 being greater than the tip circle diameter of the pinion 17 thus enabling the haulage motor 8 and the pinion 17 disposed therebefore to be introduced and removed. <IMAGE>